Is there any way to translate the post aplready posted in some other language?? Even plugin which helps in transaltion would be helpful. Any suggestions?
Try this one. 41 plus languages, and 4 different translation engines: http://www.nothing2hide.net/wp-plugins/wordpress-global-translator-plugin/
the alternative is using 'global translator plugin', the great thig is that they have sitemap integration that compatible with google xml sitemap, so the translated content will be indexed by google too...
but then again. I read some reviews about that plugin that its not working properly and does give a lots of error. Have downloaded it and will try to integrate that and check if it works
Unfortunately every plugin doesn't work on every blog. It depends what else you have that may not be compatible...different perma link and masking plug ins may give it some problems. I used it 2 years ago, and it never gave me a problem, and just reinstalled it recently and it's working fine. There are others out there.